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_maybe_update_themes()

This function’s access is marked private. This means it is not intended for use by plugin or theme developers, only in other core functions. It is listed here for completeness.

Check themes versions only after a duration of time.

Description

This is for performance reasons to make sure that on the theme version checker is not run on every page load.

Source

File: wp-includes/update.php 

function _maybe_update_themes() {
	$current = get_site_transient( 'update_themes' );

	if ( isset( $current->last_checked )
		&& 12 * HOUR_IN_SECONDS > ( time() - $current->last_checked )
	) {
		return;
	}

	wp_update_themes();
}

Uses

Uses Description
wp-includes/update.php: wp_update_themes()

Checks for available updates to themes based on the latest versions hosted on WordPress.org.
wp-includes/option.php: get_site_transient()

Retrieves the value of a site transient.

Changelog

Version Description
2.7.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/_maybe_update_themes